The third-grade students of Harmony Park Elementary love music class! That's where a little Grey Goose, who looks more like a duck, leads them on musical adventures through singing, playing instruments, moving, creating, composing, and analyzing music. Mrs. Boss, the music teacher, promises the children that Grey Goose can even help them answer an important question: What makes Harmony Park Elementary the best school for one hundred million miles? But when Grey Goose goes missing, the students find themselves with a mystery on their hands.Young readers will love joining the children on their quest to search for clues, while having fun and learning musical concepts along the way. Teachers and parents will appreciate how the story encourages positive interactions, supports learning and team building, provides a mindful activity, and creates an uplifting message about self-identity.